40 C.F.R. § 86.1804-01

Current through October 31, 2024
Section 86.1804-01 - Acronyms and abbreviations

The following abbreviations apply to this subpart:

A/C-Air conditioning.

AECD-Auxiliary emission control device.

A/F-Air/Fuel

ALVW-Adjusted Loaded Vehicle Weight.

API-American Petroleum Institute.

ASTM-American Society for Testing and Materials.

BAT-Bench-Aging Time

C-Celsius.

cfm-Cubic feet per minute.

CFV-Critical flow venturi.

CFV-CVS-Critical flow venturi-constant volume sampler.

CH3OH-Methanol.

CID-Cubic inch displacement.

Cl-Chemiluminescence.

CO-Carbon monoxide.

CO2-Carbon dioxide.

conc.-Concentration.

CST-Certification Short Test.

cu. in.-Cubic inch(es).

CVS-Constant volume sampler.

DDV-Durability Data Vehicle.

deg.-Degree(s).

DNPH-2,4-dinitrophenylhydrazine.

EDV-Emission Data Vehicle.

EP-End point.

ETW-Equivalent test weight.

F-Fahrenheit.

FEL-Family Emission Limit.

FID-Flame ionization detector.

ft.-Feet.

FTP-Federal Test Procedure.

g-gram(s).

gal.-U.S. gallon(s).

GC-Gas chromatograph.

GVW-Gross vehicle weight.

GVWR-Gross vehicle weight rating.

H2O-Water.

HC-Hydrocarbon(s).

HCHO-Formaldehyde.

HDV-Heavy-duty vehicle.

HEV-Hybrid electric vehicle.

HFID-Heated flame ionization detector.

Hg-Mercury.

HLDT-Heavy light-duty truck. Includes only those trucks over 6000 pounds GVWR (LDT3s and LDT4s).

HLDT/MDPV-Heavy light-duty trucks and medium-duty passenger vehicles.

hp-Horsepower.

HPLC-High-pressure liquid chromatography.

IBP-Initial boiling point.

in.-Inch(es).

IUVP-In-Use Verification Program.

K-Kelvin.

kg-Kilogram(s).

km-Kilometer(s).

kPa-Kilopascal(s).

lb.-Pound(s).

LDT1-Light-duty truck 1.

LDT2-Light-duty truck 2.

LDT3-Light-duty truck 3.

LDT4-Light-duty truck 4.

LDV/LLDT-Light-duty vehicles and light light-duty trucks. Includes only those trucks rated at 6000 pounds GVWR or less (LDT1s and LDT2s).

LDV/T-Light-duty vehicles and light-duty trucks. This term is used collectively to include, or to show that a provision applies to, all light-duty vehicles and all categories of light-duty trucks, i.e.

LDT1, LDT2, LDT3 and LDT4.

LEV-Low Emission Vehicle.

LPG-Liquefied Petroleum Gas.

m-Meter(s).

max.-Maximum.

MDPV-Medium-duty passenger vehicle.

mg-Milligram(s).

mi.-Mile(s).

min.-Minimum.

ml-Milliliter(s).

mm-Millimeter(s).

mph-Miles per hour.

mV-Millivolt

N2-Nitrogen.

NDIR-Nondispersive infrared.

NLEV-Refers to the National Low Emission Vehicle Program. Regulations governing this program are found at subpart R of this part.

NMHC-Nonmethane Hydrocarbons.

NMHCE-Non-Methane Hydrocarbon Equivalent.

NMOG-Non-methane organic gases.

NO-nitric oxide.

No.-Number.

O2-Oxygen.

OEM-Original equipment manufacturer.

NO2-Nitrogen dioxide.

NOX-Oxides of nitrogen.

Pb-Lead.

pct.-Percent.

PDP-CVS-Positive displacement pump-constant volume sampler.

ppm-Parts per million by volume.

PM-Particulate Matter.

ppm C-Parts per million, carbon.

psi-Pounds per square inch.

R-Rankin.

RAF-Reactivity adjustment factor.

rpm-Revolutions per minute.

RVP-Reid vapor pressure.

s-Second(s).

SAE-Society of Automotive Engineers.

SBC-Standard Bench Cycle

SFTP-Supplemental Federal Test Procedure.

SI-International system of units.

SRC-Standard Road Cycle

SULEV-Super Ultra Low Emission Vehicle.

TD-dispensed fuel temperature.

THC-Total Hydrocarbons.

THCE-Total Hydrocarbon Equivalent.

TLEV-Transitional Low Emission Vehicle.

UDDS-Urban dynamometer driving schedule.

ULEV-Ultra Low Emission Vehicle.

UV-Ultraviolet.

vs-Versus.

W-Watt(s).

WOT-Wide open throttle.

Wt.-Weight.

ZEV-Zero Emission Vehicle.

40 C.F.R. §86.1804-01

64 FR 23925, May 4, 1999, as amended at 65 FR 6852 , Feb. 10, 2000; 65 FR 59965 , Oct. 6, 2000; 71 FR 2829 , Jan. 17, 2006